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Agarwal M, Bhaskar A, Singha B, Mukhopadhyay S, Pahuja I, Singh A, Chaturvedi S, Agarwal N, Dwivedi VP, Nandicoori VK. Depletion of essential mycobacterial gene glmM reduces pathogen survival and induces host-protective immune responses against tuberculosis. Commun Biol 2024; 7:949. [PMID: 39107377 PMCID: PMC11303689 DOI: 10.1038/s42003-024-06620-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 07/23/2024] [Indexed: 08/10/2024] Open
Abstract
The limitations of TB treatment are the long duration and immune-dampening effects of anti-tuberculosis therapy. The Cell wall plays a crucial role in survival and virulence; hence, enzymes involved in its biosynthesis are good therapeutic targets. Here, we identify Mycobacterium tuberculosis (Mtb) GlmM, (GlmMMtb) engaged in the UDP-GlcNAc synthesis pathway as an essential enzyme. We generated a conditional knockdown strain, Rv-glmMkD using the CRISPR interference-mediated gene silencing approach. Depletion of GlmMMtb affects the morphology and thickness of the cell wall. The Rv-glmMkD strain attenuated Mtb survival in vitro, in the host macrophages (ex vivo), and in a murine mice infection model (in vivo). Results suggest that the depletion of GlmMMtb induces M1 macrophage polarization, prompting a pro-inflammatory cytokine response, apparent from the upregulation of activation markers, including IFNɣ and IL-17 that resists the growth of Mtb. These observations provide a rationale for exploring GlmMMtb as a potential therapeutic target.
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Affiliation(s)
- Meetu Agarwal
- Signal Transduction Laboratory, National Institute of Immunology, New Delhi, India.
- Department of Molecular Medicine, Jamia Hamdard University, New Delhi, India.
| | - Ashima Bhaskar
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Biplab Singha
- Signal Transduction Laboratory, National Institute of Immunology, New Delhi, India
| | - Suparba Mukhopadhyay
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Isha Pahuja
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Archna Singh
- CSIR - Institute of Genomics and Integrative Biology, Mall Road, Delhi, India
| | - Shivam Chaturvedi
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Nisheeth Agarwal
- Translational Health Science and Technology Institute (THSTI), Faridabad, India
| | - Ved Prakash Dwivedi
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Vinay Kumar Nandicoori
- Signal Transduction Laboratory, National Institute of Immunology, New Delhi, India.
- CSIR-Centre for Cellular and Molecular Biology, Habsiguda, Hyderabad, Telangana, India.
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2
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Bhat SA, Parveen A, Gormley E, Meade KG. Extensive differential DNA methylation between tuberculosis skin test positive and skin test negative cattle. BMC Genomics 2024; 25:762. [PMID: 39107682 PMCID: PMC11301934 DOI: 10.1186/s12864-024-10574-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 06/27/2024] [Indexed: 08/10/2024] Open
Abstract
Bovine tuberculosis (bTB), caused by Mycobacterium bovis (M. bovis), represents a significant problem for the agriculture industry as well as posing a risk for human health. Current diagnostic tests for bTB target the cell-mediated immune (CMI) response to infection with M. bovis, primarily through screening of animals with the tuberculin skin test. Epigenetic modifications have been shown to alter the course of the immune response and differentially methylated regions (DMRs) might also influence the outcome of the skin test in cattle. Whole Genome Bisulphite Sequencing (WGBS) was used to profile DNA methylation levels from peripheral blood of a group of cattle identified as test positive for M. bovis (positive for the single intradermal comparative tuberculin test (SICTT) and/or the interferon-γ release assay compared to a test negative control group [n = 8/group, total of 16 WGBS libraries]. Although global methylation profiles were similar for both groups across the genome, 223 DMRs and 159 Differentially Promoter Methylated Genes (DPMGs) were identified between groups with an excess of hypermethylated sites in SICTT positive cattle (threshold > 15% differential methylation). Genes located within these DMRs included the Interleukin 1 receptor (IL1R1) and MHC related genes (BOLA and BOLA-DQB). KEGG pathway analysis identified enrichment of genes involved in Calcium and MAPK signalling, as well as metabolism pathways. Analysis of DMRs in a subset of SICTT negative cattle that were IFN-γ positive showed differential methylation of genes including Interleukin 10 Receptor, alpha (IL10RA), Interleukin 17 F (IL17F) and host defence peptides (DEFB and BDEF109). This study has identified a number of immune gene loci at which differential methylation is associated with SICTT test results and the degree of methylation could influence effective host immune responses.
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Affiliation(s)
- Sajad A Bhat
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Alia Parveen
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Eamonn Gormley
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland
| | - Kieran G Meade
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland.
- UCD Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin, D04 V1W8, Ireland.
- UCD Institute of Food and Health, University College Dublin, Belfield, Dublin, C15 PW93, Ireland.
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Sharma B, Rathour D, Uddin S, Joshi B, Chauhan DS, Kumar S. Exploring modulations in T-cell receptor-mediated T-cell signaling events in systemic circulation and at local disease site of patients with tubercular pleural effusion: An attempt to understand tuberculosis pathogenesis at the local disease site. Front Med (Lausanne) 2022; 9:983605. [DOI: 10.3389/fmed.2022.983605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/10/2022] [Indexed: 12/04/2022] Open
Abstract
IntroductionT cells are crucial for pathogenesis as well as control for tuberculosis (TB). Although much is known about the signaling pathways which are required for the activation of T cells during acute infection but the way these cells respond during persistent of infection still remained elusive. Therefore, it is rationale to understand T cell activation during tuberculous pleural effusion (TPE), which is similar to bacterial persistency system.MethodsHerein, we will employ T cell receptor (TCR) based approaches for studying events of T cell activation pathways in cells of blood and pleural fluid among patients with TPE. We performed spectrofluorimetric analysis to study effect of M. tuberculosis antigens, ESAT-6 and Ag85A stimulation on intracellular calcium levels, Phosphorylation levels of ZAP-70 (Zeta-chain-associated protein kinase 70), PKC-θ (Protein kinase C theta), Erk1/2 (Extracellular signal-regulated kinase 1 and 2) and p-38 two important members of MAPKs (Mitogen activated Protein kinases) in CD3 and CD28 induced cells of blood and pleural fluid of same patients with TPE by western blotting. Patients with non-TPE were also included as matching disease controls in this study.ResultsWe observed significantly higher intracellular calcium levels, Phosphorylation levels of ZAP-70, Erk1/2 and p-38 in CD3 and CD28 induced cells of pleural fluid as compared to the blood cells of same patients with TPE. Alteration in the activation of these events has also been noted after stimulation of ESAT-6 and Ag85A.DiscussionPresent study demonstrated up-regulated activation of TCR mediated T cell signaling events at local disease site (Pleural fluid) as compared to the blood sample of TB pleurisy patients which could be involved in T-cell dysfunctioning during the progression of the disease and also could be responsible for Th 1 dominance at local disease site in patients with TPE.
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Davuluri KS, Chauhan DS. microRNAs associated with the pathogenesis and their role in regulating various signaling pathways during Mycobacterium tuberculosis infection. Front Cell Infect Microbiol 2022; 12:1009901. [PMID: 36389170 PMCID: PMC9647626 DOI: 10.3389/fcimb.2022.1009901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/03/2022] [Indexed: 11/22/2022] Open
Abstract
Despite more than a decade of active study, tuberculosis (TB) remains a serious health concern across the world, and it is still the biggest cause of mortality in the human population. Pathogenic bacteria recognize host-induced responses and adapt to those hostile circumstances. This high level of adaptability necessitates a strong regulation of bacterial metabolic characteristics. Furthermore, the immune reponse of the host virulence factors such as host invasion, colonization, and survival must be properly coordinated by the pathogen. This can only be accomplished by close synchronization of gene expression. Understanding the molecular characteristics of mycobacterial pathogenesis in order to discover therapies that prevent or resolve illness relies on the bacterial capacity to adjust its metabolism and replication in response to various environmental cues as necessary. An extensive literature details the transcriptional alterations of host in response to in vitro environmental stressors, macrophage infection, and human illness. Various studies have recently revealed the finding of several microRNAs (miRNAs) that are believed to play an important role in the regulatory networks responsible for adaptability and virulence in Mycobacterium tuberculosis. We highlighted the growing data on the existence and quantity of several forms of miRNAs in the pathogenesis of M. tuberculosis, considered their possible relevance to disease etiology, and discussed how the miRNA-based signaling pathways regulate bacterial virulence factors.
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Juarez I, Su S, Herbert ZT, Teijaro JR, Moulton VR. Splicing factor SRSF1 is essential for CD8 T cell function and host antigen-specific viral immunity. Front Immunol 2022; 13:906355. [PMID: 36189299 PMCID: PMC9523749 DOI: 10.3389/fimmu.2022.906355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
Cytotoxic CD8 T cells are crucial for the host antigen-specific immune response to viral pathogens. Here we report the identification of an essential role for the serine/arginine-rich splicing factor (SRSF) 1 in CD8 T cell homeostasis and function. Specifically, SRSF1 is necessary for the maintenance of normal CD8 T lymphocyte numbers in the lymphoid compartment, and for the proliferative capacity and cytotoxic function of CD8 T cells. Furthermore, SRSF1 is required for antigen-specific IFN-γ cytokine responses in a viral infection challenge in mice. Transcriptomics analyses of Srsf1-deficient T cells reveal that SRSF1 controls proliferation, MAP kinase signaling and IFN signaling pathways. Mechanistically, SRSF1 controls the expression and activity of the Mnk2/p38-MAPK axis at the molecular level. Our findings reveal previously unrecognized roles for SRSF1 in the physiology and function of cytotoxic CD8 T lymphocytes and a potential molecular mechanism in viral immunopathogenesis.
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Affiliation(s)
- Ignacio Juarez
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Department of Immunology, Ophthalmology and ENT, Faculty of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Shi Su
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
- Cardiovascular Institute, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Zachary T. Herbert
- Molecular Biology Core Facilities at Dana-Farber Cancer Institute, Boston, MA, United States
| | - John R. Teijaro
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
| | - Vaishali R. Moulton
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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Singh M, Kumar S, Singh B, Jain P, Kumari A, Pahuja I, Chaturvedi S, Prasad DVR, Dwivedi VP, Das G. The 1, 2-ethylenediamine SQ109 protects against tuberculosis by promoting M1 macrophage polarization through the p38 MAPK pathway. Commun Biol 2022; 5:759. [PMID: 35902694 PMCID: PMC9334294 DOI: 10.1038/s42003-022-03693-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 07/10/2022] [Indexed: 11/23/2022] Open
Abstract
Directly Observed Treatment Short-course (DOTs), is an effective and widely recommended treatment for tuberculosis (TB). The antibiotics used in DOTs, are immunotoxic and impair effector T cells, increasing the risk of re-infections and reactivation. Multiple reports suggest that addition of immune-modulators along with antibiotics improves the effectiveness of TB treatment. Therefore, drugs with both antimicrobial and immunomodulatory properties are desirable. N1-(Adamantan-2-yl)-N2-[(2E)-3,7-dimethylocta-2,6-dien-1-yl]ethane-1,2-diamine (SQ109) is an asymmetric diamine derivative of adamantane, that targets Mycobacterial membrane protein Large 3 (MmpL3). SQ109 dissipates the transmembrane electrochemical proton-gradient necessary for cell-wall biosynthesis and bacterial activity. Here, we examined the effects of SQ109 on host-immune responses using a murine TB model. Our results suggest the pro-inflammatory nature of SQ109, which instigates M1-macrophage polarization and induces protective pro-inflammatory cytokines through the p38-MAPK pathway. SQ109 also promotes Th1 and Th17-immune responses that inhibit the bacillary burden in a murine model of TB. These findings put forth SQ109 as a potential-adjunct to TB antibiotic therapy. The adamantine derivative SQ109 induces protective pro-inflammatory cytokines and promotes Th1 and Th17-immune responses that inhibit bacterial burden in a tuberculosis mouse model.
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Affiliation(s)
- Mona Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India.,Deshbandhu College, University of Delhi, Kalkaji, New Delhi, 110 019, India
| | - Santosh Kumar
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Baldeep Singh
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Preeti Jain
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Anjna Kumari
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Isha Pahuja
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Shivam Chaturvedi
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | | | - Ved Prakash Dwivedi
- Immunobiology Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Gobardhan Das
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India.
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Mathad JS, Queiroz ATL, Bhosale R, Alexander M, Naik S, Kulkarni V, Andrade BB, Gupta A. Transcriptional Analysis for Tuberculosis in Pregnant Women From the PRegnancy Associated Changes In Tuberculosis Immunology (PRACHITi) Study. Clin Infect Dis 2022; 75:2239-2242. [PMID: 35686302 PMCID: PMC9761891 DOI: 10.1093/cid/ciac437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 05/18/2022] [Accepted: 05/28/2022] [Indexed: 01/19/2023] Open
Abstract
A new tuberculosis (TB) diagnostic cartridge assay, which detects a 3-gene TB signature in whole blood, was not diagnostic in women with maternal TB disease in India (area under the curve [AUC] = 0.72). In a cohort of pregnant women, we identified a novel gene set for TB diagnosis (AUC = 0.97) and one for TB progression (AUC = 0.96).
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Affiliation(s)
- Jyoti S Mathad
- Correspondence: J. Mathad, Center for Global Health, Weill Cornell Medicine, 402 E 67th Street, 2nd floor, New York, NY 10065 ()
| | - Artur T L Queiroz
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil,Centro de Integração de Dados e Conhecimentos para Saúde, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
| | - Ramesh Bhosale
- Byramjee Jeejeebhoy Government Medical College–Sassoon Government Hospital, Pune, India,Byramjee Jeejeebhoy Government Medical College–Johns Hopkins University Clinical Trials Unit, Pune, India
| | - Mallika Alexander
- Byramjee Jeejeebhoy Government Medical College–Johns Hopkins University Clinical Trials Unit, Pune, India
| | - Shilpa Naik
- Byramjee Jeejeebhoy Government Medical College–Sassoon Government Hospital, Pune, India,Byramjee Jeejeebhoy Government Medical College–Johns Hopkins University Clinical Trials Unit, Pune, India
| | - Vandana Kulkarni
- Byramjee Jeejeebhoy Government Medical College–Johns Hopkins University Clinical Trials Unit, Pune, India
| | - Bruno B Andrade
- Multinational Organization Network Sponsoring Translational and Epidemiological Research Initiative, Salvador, Brazil,Laboratório de Inflamação e Biomarcadores, Instituto Gonçalo Moniz, Fundação Oswaldo Cruz, Salvador, Brazil
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Schurz H, Glanzmann B, Bowker N, van Toorn R, Solomons R, Schoeman J, van Helden PD, Kinnear CJ, Hoal EG, Möller M. Deciphering Genetic Susceptibility to Tuberculous Meningitis. Front Neurol 2022; 13:820168. [PMID: 35401413 PMCID: PMC8993185 DOI: 10.3389/fneur.2022.820168] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/03/2022] [Indexed: 11/13/2022] Open
Abstract
Tuberculous meningitis (TBM) is the most severe form of extrapulmonary tuberculosis (TB) that arises when a caseating meningeal granuloma discharges its contents into the subarachnoid space. It accounts for ~1% of all disease caused by Mycobacterium tuberculosis and the age of peak incidence is from 2-4 years. The exact pathogenesis of TBM is still not fully understood and the mechanism(s) by which the bacilli initially invade the blood-brain-barrier are still to be elucidated. This study investigated the involvement of the host genome in TBM susceptibility, by considering common variants (minor allele frequency (MAF) >5%) using microarray genotyping and rare variants (MAF <1%) via exome sequencing. A total of 123 TBM cases, 400 pulmonary TB (pTB) cases and 477 healthy controls were genotyped on the MEGA array. A genome-wide association study (GWAS) comparing 114 TBM cases to 395 healthy controls showed no association with TBM susceptibility. A second analysis comparing 114 TBM cases to 382 pTB cases was conducted to investigate variants associated with different TB phenotypes. No significant associations were found with progression from pTB to TBM. Ten TBM cases and 10 healthy controls were exome sequenced. Gene set association tests SKAT-O and SKAT Common Rare were used to assess the association of rare SNPs and the cumulative effect of both common and rare SNPs with susceptibility to TBM, respectively. Ingenuity Pathway Analysis (IPA) of the top-hits of the SKAT-O analysis showed that NOD2 and CYP4F2 are both important in TBM pathogenesis and highlighted these as targets for future study. For the SKAT Common Rare analysis Centriolar Coiled-Coil Protein 110 (CCP110) was nominally associated (p = 5.89x10-6) with TBM susceptibility. In addition, several top-hit genes ascribed to the development of the central nervous system (CNS) and innate immune system regulation were identified. Exome sequencing and GWAS of our TBM cohort has identified a single previously undescribed association of CCP110 with TBM susceptibility. These results advance our understanding of TBM in terms of both variants and genes that influence susceptibility. In addition, several candidate genes involved in innate immunity have been identified for further genotypic and functional investigation.
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Affiliation(s)
- Haiko Schurz
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Brigitte Glanzmann
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- SAMRC Genomics Centre, Cape Town, South Africa
| | - Nicholas Bowker
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Ronald van Toorn
- Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Regan Solomons
- Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Johan Schoeman
- Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Stellenbosch, South Africa
| | - Paul D. van Helden
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Craig J. Kinnear
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- SAMRC Genomics Centre, Cape Town, South Africa
| | - Eileen G. Hoal
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Marlo Möller
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Centre for Bioinformatics and Computational Biology, Stellenbosch University, Stellenbosch, South Africa
- *Correspondence: Marlo Möller
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Saha S, Hazra A, Ghatak D, Singh AV, Roy S, BoseDasgupta S. A Bumpy Ride of Mycobacterial Phagosome Maturation: Roleplay of Coronin1 Through Cofilin1 and cAMP. Front Immunol 2021; 12:687044. [PMID: 34630380 PMCID: PMC8495260 DOI: 10.3389/fimmu.2021.687044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Accepted: 08/17/2021] [Indexed: 11/13/2022] Open
Abstract
Phagosome-lysosome fusion in innate immune cells like macrophages and neutrophils marshal an essential role in eliminating intracellular microorganisms. In microbe-challenged macrophages, phagosome-lysosome fusion occurs 4 to 6 h after the phagocytic uptake of the microbe. However, live pathogenic mycobacteria hinder the transfer of phagosomes to lysosomes, up to 20 h post-phagocytic uptake. This period is required to evade pro-inflammatory response and upregulate the acid-stress tolerant proteins. The exact sequence of events through which mycobacteria retards phagolysosome formation remains an enigma. The macrophage coat protein Coronin1(Cor1) is recruited and retained by mycobacteria on the phagosome membrane to retard its maturation by hindering the access of phagosome maturation factors. Mycobacteria-infected macrophages exhibit an increased cAMP level, and based on receptor stimulus, Cor1 expressing cells show a higher level of cAMP than non-Cor1 expressing cells. Here we have shown that infection of bone marrow-derived macrophages with H37Rv causes a Cor1 dependent rise of intracellular cAMP levels at the vicinity of the phagosomes. This increased cAMP fuels cytoskeletal protein Cofilin1 to depolymerize F-actin around the mycobacteria-containing phagosome. Owing to reduced F-actin levels, the movement of the phagosome toward the lysosomes is hindered, thus contributing to the retarded phagosome maturation process. Additionally, Cor1 mediated upregulation of Cofilin1 also contributes to the prevention of phagosomal acidification, which further aids in the retardation of phagosome maturation. Overall, our study provides first-hand information on Cor1 mediated retardation of phagosome maturation, which can be utilized in developing novel peptidomimetics as part of host-directed therapeutics against tuberculosis.
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Affiliation(s)
- Saradindu Saha
- Molecular Immunology and Cellular Microbiology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Arnab Hazra
- Molecular Immunology and Cellular Microbiology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Debika Ghatak
- Molecular Immunology and Cellular Microbiology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Ajay Vir Singh
- Department of Microbiology and Molecular Biology, ICMR-National JALMA Institute of Leprosy and Other Mycobacterial Diseases, Agra, India
| | - Sadhana Roy
- Molecular Immunology and Cellular Microbiology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Somdeb BoseDasgupta
- Molecular Immunology and Cellular Microbiology Laboratory, Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
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Sengupta S, Nayak B, Meuli M, Sander P, Mishra S, Sonawane A. Mycobacterium tuberculosis Phosphoribosyltransferase Promotes Bacterial Survival in Macrophages by Inducing Histone Hypermethylation in Autophagy-Related Genes. Front Cell Infect Microbiol 2021; 11:676456. [PMID: 34381738 PMCID: PMC8350138 DOI: 10.3389/fcimb.2021.676456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Mycobacterium tuberculosis (Mtb) inhibits autophagy to promote its survival in host cells. However, the molecular mechanisms by which Mtb inhibits autophagy are poorly understood. Here, we report a previously unknown mechanism in which Mtb phosphoribosyltransferase (MtbPRT) inhibits autophagy in an mTOR, negative regulator of autophagy, independent manner by inducing histone hypermethylation (H3K9me2/3) at the Atg5 and Atg7 promoters by activating p38-MAPK- and EHMT2 methyltransferase-dependent signaling pathways. Additionally, we find that MtbPRT induces EZH2 methyltransferase-dependent H3K27me3 hypermethylation and reduces histone acetylation modifications (H3K9ac and H3K27ac) by upregulating histone deacetylase 3 to inhibit autophagy. In summary, this is the first demonstration that Mtb inhibits autophagy by inducing histone hypermethylation in autophagy-related genes to promote intracellular bacterial survival.
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Affiliation(s)
- Srabasti Sengupta
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, India
| | - Barsa Nayak
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
| | - Michael Meuli
- Institut für Medizinische Mikrobiologie, Universität Zürich, Zurich, Switzerland
| | - Peter Sander
- Institut für Medizinische Mikrobiologie, Universität Zürich, Zurich, Switzerland
- Nationales Zentrum für Mykobakterien, Zürich, Switzerland
| | - Snehasish Mishra
- School of Biotechnology, KIIT Deemed to be University, Bhubaneswar, India
| | - Avinash Sonawane
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
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11
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Pellegrini JM, Martin C, Morelli MP, Schander JA, Tateosian NL, Amiano NO, Rolandelli A, Palmero DJ, Levi A, Ciallella L, Colombo MI, García VE. PGE2 displays immunosuppressive effects during human active tuberculosis. Sci Rep 2021; 11:13559. [PMID: 34193890 PMCID: PMC8245456 DOI: 10.1038/s41598-021-92667-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/03/2021] [Indexed: 01/18/2023] Open
Abstract
Prostaglandin E2 (PGE2), an active lipid compound derived from arachidonic acid, regulates different stages of the immune response of the host during several pathologies such as chronic infections or cancer. In fact, manipulation of PGE2 levels was proposed as an approach for countering the Type I IFN signature of tuberculosis (TB). However, very limited information regarding the PGE2 pathway in patients with active TB is currently available. In the present work, we demonstrated that PGE2 exerts a potent immunosuppressive action during the immune response of the human host against Mycobacterium tuberculosis (Mtb) infection. Actually, we showed that PGE2 significantly reduced the surface expression of several immunological receptors, the lymphoproliferation and the production of proinflammatory cytokines. In addition, PGE2 promoted autophagy in monocytes and neutrophils cultured with Mtb antigens. These results suggest that PGE2 might be attenuating the excessive inflammatory immune response caused by Mtb, emerging as an attractive therapeutic target. Taken together, our findings contribute to the knowledge of the role of PGE2 in the human host resistance to Mtb and highlight the potential of this lipid mediator as a tool to improve anti-TB treatment.
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Affiliation(s)
- Joaquín Miguel Pellegrini
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Candela Martin
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - María Paula Morelli
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Julieta Aylen Schander
- Laboratorio de Fisiopatología de La Preñez y El Parto, Centro de Estudios Farmacológicos Y Botánicos , CONICET-UBA, Buenos Aires, Argentina
| | - Nancy Liliana Tateosian
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Nicolás Oscar Amiano
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Agustín Rolandelli
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Domingo Juan Palmero
- División Tisioneumonología, Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina
| | - Alberto Levi
- División Tisioneumonología, Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina
| | - Lorena Ciallella
- División Tisioneumonología, Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina
| | - María Isabel Colombo
- Instituto de Histología y Embriología de Mendoza, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo-CONICET, CP 5500, Mendoza, Argentina
| | - Verónica Edith García
- Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires, Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) , Intendente Güiraldes 2160, Pabellón II, 4°piso, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
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12
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Kumar S, Bhaskar A, Patnaik G, Sharma C, Singh DK, Kaushik SR, Chaturvedi S, Das G, Dwivedi VP. Intranasal immunization with peptide-based immunogenic complex enhances BCG vaccine efficacy in a murine model of tuberculosis. JCI Insight 2021; 6:145228. [PMID: 33444288 PMCID: PMC7934935 DOI: 10.1172/jci.insight.145228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/07/2021] [Indexed: 12/23/2022] Open
Abstract
Prime-boost immunization strategies are required to control the global tuberculosis (TB) pandemic, which claims approximately 3 lives every minute. Here, we have generated an immunogenic complex against Mycobacterium tuberculosis (M.tb), consisting of promiscuous T cell epitopes (M.tb peptides) and TLR ligands assembled in liposomes. Interestingly, this complex (peptide–TLR agonist–liposomes; PTL) induced significant activation of CD4+ T cells and IFN-γ production in the PBMCs derived from PPD+ healthy individuals as compared with PPD– controls. Furthermore, intranasal delivery of PTL significantly reduced the bacterial burden in the infected mice by inducing M.tb-specific polyfunctional (IFN-γ+IL-17+TNF-α+IL-2+) immune responses and long-lasting central memory responses, thereby reducing the risk of TB recurrence in DOTS-treated infected animals. The transcriptome analysis of peptide-stimulated immune cells unveiled the molecular basis of enhanced protection. Furthermore, PTL immunization significantly boosted the Bacillus Calmette-Guerin–primed (BCG-primed) immune responses against TB. The greatly enhanced efficacy of the BCG-PTL vaccine model in controlling pulmonary TB projects PTL as an adjunct vaccine against TB.
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Affiliation(s)
- Santosh Kumar
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Ashima Bhaskar
- Signal Transduction Laboratory-1, National Institute of Immunology, New Delhi, India
| | - Gautam Patnaik
- Special Center for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Chetan Sharma
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Dhiraj Kumar Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Sandeep Rai Kaushik
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Shivam Chaturvedi
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
| | - Gobardhan Das
- Special Center for Molecular Medicine, Jawaharlal Nehru University, New Delhi, India
| | - Ved Prakash Dwivedi
- International Centre for Genetic Engineering and Biotechnology (ICGEB), New Delhi, India
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Barbero AM, Trotta A, Genoula M, Pino REHD, Estermann MA, Celano J, Fuentes F, García VE, Balboa L, Barrionuevo P, Pasquinelli V. SLAMF1 signaling induces Mycobacterium tuberculosis uptake leading to endolysosomal maturation in human macrophages. J Leukoc Biol 2020; 109:257-273. [PMID: 32991756 DOI: 10.1002/jlb.4ma0820-655rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 08/19/2020] [Accepted: 09/02/2020] [Indexed: 01/18/2023] Open
Abstract
Tuberculosis dates back to ancient times but it is not a problem of the past. Each year, millions of people die from tuberculosis. After inhalation of infectious droplet nuclei, Mycobacterium tuberculosis reaches the lungs where it can manipulate the immune system and survive within host macrophages, establishing a persistent infection. The signaling lymphocytic activation molecule family member 1 (SLAMF1) is a self-ligand receptor that can internalize gram-negative bacteria and regulate macrophages' phagosomal functions. In tuberculosis, SLAMF1 promotes Th1-protective responses. In this work, we studied the role of SLAMF1 on macrophages' functions during M. tuberculosis infection. Our results showed that both M. tuberculosis and IFN-γ stimulation induce SLAMF1 expression in macrophages from healthy donor and Tohoku Hospital Pediatrcs-1 cells. Costimulation through SLAMF1 with an agonistic antibody resulted in an enhanced internalization of M. tuberculosis by macrophages. Interestingly, we found that SLAMF1 interacts with M. tuberculosis and colocalizes with the bacteria and with early and late endosomes/lysosomes markers (EEA1 and LAMP2), suggesting that SLAMF1 recognize M. tuberculosis and participate in the endolysosomal maturation process. Notably, increased levels of SLAMF1 were detected in CD14 cells from pleural effusions of tuberculosis patients, indicating that SLAMF1 might have an active function at the site of infection. Taken together, our results provide evidence that SLAMF1 improves the uptake of M. tuberculosis by human monocyte-derived macrophages.
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Affiliation(s)
- Angela María Barbero
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Aldana Trotta
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Melanie Genoula
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Rodrigo Emanuel Hernández Del Pino
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
| | - Martín Andrés Estermann
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Victoria, Clayton, Australia
| | - Josefina Celano
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina
| | - Federico Fuentes
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Verónica Edith García
- CONICET-University of Buenos Aires, Institute of Biological Chemistry of Exact and Natural Sciences (IQUIBICEN), C1428EHA, Buenos Aires, Argentina.,University of Buenos Aires, School of Sciences, Department of Biological Chemistry, C1428EHA, Buenos Aires, Argentina
| | - Luciana Balboa
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Paula Barrionuevo
- Institute of Experimental Medicine (CONICET-National Academy of Medicine), C1425ASU, Buenos Aires, Argentina
| | - Virginia Pasquinelli
- Center for Basic and Applied Research (CIBA), National University of the Northwest of the Province of Buenos Aires (UNNOBA), B6000DNE, Buenos Aires, Argentina.,Center for Research and Transfers of the Northwest of the Province of Buenos Aires (CIT NOBA), UNNOBA-National University of San Antonio de Areco (UNSAdA) - National Scientific and Technical Research Council (CONICET), Buenos Aires, Argentina
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14
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Lu RJ, Xing HL, Liu CJ, Shu Y, Guo B, Chu XY, Wang CF, Feng L, Yu KT. Antibacterial peptides inhibit MC3T3-E1 cells apoptosis induced by TNF-α through p38 MAPK pathway. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:943. [PMID: 32953743 PMCID: PMC7475433 DOI: 10.21037/atm-20-5338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Antimicrobial peptides (AMP), as a small molecular polypeptide with a broad antibacterial spectrum and high efficiency, have attracted more and more attention. Few pieces of research on the effect of the antimicrobial peptide on osteoblast under inflammatory conditions have so far been reported. The main aim of this work was to investigate the antiapoptosis effect of the antimicrobial peptide on MC3T3-E1 cells induced by TNF-α and its related mechanism. Methods Rat MC3T3-E1 cells were co-cultured with different concentrations of antibacterial peptide DP7 and TNF-α.MTS assay, cell scratch test, alkaline phosphatase activity, and alizarin red staining assay were used to determine osteoblast viability in this experiment. Annexin V-FITC/PI double staining cells and flow cytometry were used to analyze apoptosis and Western blot assay detection to show mitogen-activated protein kinase (MAPK) protein expression in rat MC3T3-E1 cells. Then, Realtime polymerase chain reaction (PCR) was used to examine the caspase-3 gene expression. Also, ELISA detection was used to clarify the anti-apoptotic effect of the p38 MAPK inhibitor, SB203580, on cells’ apoptosis. Results Antimicrobial peptide could promote the proliferation, migration, and osteogenic ability of MC3T3-E1 cells induced by TNF-α, but inhibit cell apoptosis rate (P<0.05), and the effect was concentration-dependent. Western blot results showed after TNF-αtreatment, the expression of p-p38 MAPK in the MC3T3-E1 cells increased after TNF-α and antimicrobial peptide cotreatment, TNF-α induced p-p38 MAPK phosphorylation was inhibited, and the difference was statistically significant (P<0.05). Realtime PCR results showed that the gene expression of caspase-3 mRNA was up-regulated after TNF-α treatment, while their expression was down-regulated after cultured with TNF-α and antimicrobial peptide. Elisa's analysis showed that cell apoptosis increased after TNF-α treatment alone, and cell apoptosis was reduced to the normal levels when combined with antimicrobial peptide, and cell apoptosis induced by TNF-α was partially abolished when combined with SB203580. Conclusions Antimicrobial peptide DP7 could inhibit MC3T3-E1 cells apoptosis induced by TNF-α, and the effect was concentration-dependent. The antiapoptosis activation of the antimicrobial peptide on MC3TE-E1 cells may be related to the inhibition of the p38 MAPK pathway.
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Affiliation(s)
- Rong-Jian Lu
- Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - He-Lin Xing
- Department of Prosthodontics, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing, China
| | - Chao-Jun Liu
- CheerLand Clinical Laboratory Co., Ltd., Beijing, China
| | - Yao Shu
- Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Biao Guo
- Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiao-Yang Chu
- Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chun-Fang Wang
- Department of Stomatology, Qingdao West Coast New Area Central Hospital, Qingdao, China
| | - Lin Feng
- Department of Stomatology, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kai-Tao Yu
- Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
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15
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Lim HS, Lee SI, Park S. Association between Tuberculosis Case and CD44Gene Polymorphism. KOREAN JOURNAL OF CLINICAL LABORATORY SCIENCE 2019. [DOI: 10.15324/kjcls.2019.51.3.323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Hee-Seon Lim
- Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University, Asan, Korea
| | - Sang-In Lee
- Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University, Asan, Korea
| | - Sangjung Park
- Department of Biomedical Laboratory Science, College of Life and Health Sciences, Hoseo University, Asan, Korea
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16
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Rolandelli A, Pellegrini JM, Amiano NO, Santilli MC, Morelli MP, Castello FA, Tateosian NL, Levi A, Casco N, Palmero DJ, García VE. The IFNG rs1861494 Single Nucleotide Polymorphism Is Associated with Protection against Tuberculosis Disease in Argentina. Genes (Basel) 2018; 9:E46. [PMID: 29361774 PMCID: PMC5793197 DOI: 10.3390/genes9010046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 01/09/2018] [Accepted: 01/09/2018] [Indexed: 11/16/2022] Open
Abstract
Interferon gamma (IFNG) plays a key role during Mycobacterium tuberculosis (Mtb) infection, and several polymorphisms located in its gene are associated with risk of tuberculosis in diverse populations. Nevertheless, the genetic resistance/susceptibility to tuberculosis in Argentina is unknown. The IFNG rs1861494 polymorphism (G→A) was reported to alter the binding of transcription factors to this region, influencing IFNG production. Using a case-control study, we found an association between the AA and AG genotypes and tuberculosis resistance (AA vs. GG: odds ratio (OR) = 0.235, p-value = 0.012; AG vs. GG: OR = 0.303, p-value = 0.044; AA vs. AG: OR = 0.776, p-value = 0.427; AA + AG vs. GG: OR = 0.270, p-value = 0.022). Moreover, Mtb-antigen stimulated peripheral blood mononuclear cells (PBMCs) from healthy donors and AA carriers secreted the highest amounts of IFNG in culture supernatants (p-value = 0.034) and presented the greatest percentage of CD4⁺IFNG⁺ lymphocytes (p-value = 0.035), in comparison with GG carriers. No association between the polymorphism and clinical parameters of tuberculosis severity was detected. However, our findings indicate that the rs1861494 single nucleotide polymorphism (SNP) could be considered as a biomarker of tuberculosis resistance in the Argentinean population.
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Affiliation(s)
- Agustín Rolandelli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Joaquín M Pellegrini
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Nicolás O Amiano
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - María C Santilli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - María P Morelli
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Florencia A Castello
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Nancy L Tateosian
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
| | - Alberto Levi
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Nicolás Casco
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Domingo J Palmero
- División Tisioneumonología Hospital F.J. Muñiz, Uspallata 2272, (C1282AEN), Buenos Aires, Argentina.
| | - Verónica E García
- Facultad de Ciencias Exactas y Naturales, Departamento de Química Biológica, Pabellón II, Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
- Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN), CONICET-Universidad de Buenos Aires, 4°piso, Intendente Güiraldes 2160, Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina.
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17
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Tateosian NL, Pellegrini JM, Amiano NO, Rolandelli A, Casco N, Palmero DJ, Colombo MI, García VE. IL17A augments autophagy in Mycobacterium tuberculosis-infected monocytes from patients with active tuberculosis in association with the severity of the disease. Autophagy 2017; 13:1191-1204. [PMID: 28581888 DOI: 10.1080/15548627.2017.1320636] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
During mycobacterial infection, macroautophagy/autophagy, a process modulated by cytokines, is essential for mounting successful host responses. Autophagy collaborates with human immune responses against Mycobacterium tuberculosis (Mt) in association with specific IFNG secreted against the pathogen. However, IFNG alone is not sufficient to the complete bacterial eradication, and other cytokines might be required. Actually, induction of Th1 and Th17 immune responses are required for protection against Mt. Accordingly, we showed that IL17A and IFNG expression in lymphocytes from tuberculosis patients correlates with disease severity. Here we investigate the role of IFNG and IL17A during autophagy in monocytes infected with Mt H37Rv or the mutant MtΔRD1. Patients with active disease were classified as high responder (HR) or low responder (LR) according to their T cell responses against Mt. IL17A augmented autophagy in infected monocytes from HR patients through a mechanism that activated MAPK1/ERK2-MAPK3/ERK1 but, during infection of monocytes from LR patients, IL17A had no effect on the autophagic response. In contrast, addition of IFNG to infected monocytes, increased autophagy by activating MAPK14/p38 α both in HR and LR patients. Interestingly, proteins codified in the RD1 region did not interfere with IFNG and IL17A autophagy induction. Therefore, in severe tuberculosis patients' monocytes, IL17A was unable to augment autophagy because of a defect in the MAPK1/3 signaling pathway. In contrast, both IFNG and IL17A increased autophagy levels in patients with strong immunity to Mt, promoting mycobacterial killing. Our findings might contribute to recognize new targets for the development of novel therapeutic tools to fight the pathogen.
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Affiliation(s)
- Nancy Liliana Tateosian
- a Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales. UBA , Ciudad Universitaria , Buenos Aires , Argentina.,b Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales . Ciudad Universitaria , Buenos Aires , Argentina
| | - Joaquín Miguel Pellegrini
- a Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales. UBA , Ciudad Universitaria , Buenos Aires , Argentina.,b Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales . Ciudad Universitaria , Buenos Aires , Argentina
| | - Nicolás Oscar Amiano
- a Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales. UBA , Ciudad Universitaria , Buenos Aires , Argentina.,b Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales . Ciudad Universitaria , Buenos Aires , Argentina
| | - Agustín Rolandelli
- a Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales. UBA , Ciudad Universitaria , Buenos Aires , Argentina.,b Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales . Ciudad Universitaria , Buenos Aires , Argentina
| | - Nicolás Casco
- c División Tisioneumonología Hospital F.J. Muñiz , Buenos Aires , Argentina
| | | | - María Isabel Colombo
- d Instituto de Histología y Embriología de Mendoza, Facultad de Ciencias Médicas , Universidad Nacional de Cuyo-CONICET , Mendoza , Argentina
| | - Verónica Edith García
- a Departamento de Química Biológica. Facultad de Ciencias Exactas y Naturales. UBA , Ciudad Universitaria , Buenos Aires , Argentina.,b Universidad de Buenos Aires. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Química Biológica de la Facultad de Ciencias Exactas y Naturales (IQUIBICEN). Facultad de Ciencias Exactas y Naturales . Ciudad Universitaria , Buenos Aires , Argentina
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Heat shock protein70 is implicated in modulating NF-κB activation in alveolar macrophages of patients with active pulmonary tuberculosis. Sci Rep 2017; 7:1214. [PMID: 28450725 PMCID: PMC5430681 DOI: 10.1038/s41598-017-01405-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 04/07/2017] [Indexed: 12/31/2022] Open
Abstract
Heat shock proteins (HSPs) have been shown to modulate NF-κB activation. It is unknown whether HSP70 plays a role in modulating NF-κB-mediated pro-inflammatory cytokines released from alveolar macrophage (AM) of patients with active pulmonary tuberculosis (TB). Peripheral blood monocytes (PBMs) and AM were sampled from nineteen active TB patients and 14 healthy individuals. HSP70 expression was 3-fold higher in AMs of active TB patients than normal subjects, and declined after receiving 3-month anti-TB treatment. Overexpression of HSP70 by transfection with HSP70 plasmid decreased p-IκBα and p65 NF-κB activities. Inhibition of NF-κB activation using NF-κB or MAPK inhibitors increased HSP70 expression in AM of TB patients. Blocking p38- or ERK-MAPK decreased NF-κB and IκB activities, leading to up-regulated HSP70 expression. Overexpression of HSP70 alone or with p38 or ERK inhibitors decreased TNF-α (57%, 83% and 74%, respectively) and IL-6 (53%, 70%, and 67%, respectively) release from macrophages of TB patients. In conclusion, HSP70 modulates NF-κB activation in AM of TB patients, through inhibiting IκB-α phosphorylation or acting as a chaperon molecule to prevent NF-κB binding to the target genes by facilitating degradation. The upregulated HSP70 may suppress the release of pro-inflammatory cytokines during active PTB infection, and prevent overwhelming tissue damage.
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Zhan Y, Seregin SS, Chen J, Chen GY. Nod1 Limits Colitis-Associated Tumorigenesis by Regulating IFN-γ Production. THE JOURNAL OF IMMUNOLOGY 2016; 196:5121-9. [PMID: 27183588 DOI: 10.4049/jimmunol.1501822] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 04/15/2016] [Indexed: 01/01/2023]
Abstract
Chronic intestinal inflammation is a major risk factor for the development of colorectal cancer. Nod1, a member of the Nod-like receptor (NLR) family of pattern recognition receptors, is a bacterial sensor that has been previously demonstrated to reduce susceptibility of mice to chemically induced colitis and subsequent tumorigenesis, but the mechanism by which it mediates its protection has not been elucidated. In this study, we show that Nod1 expression in the hematopoietic cell compartment is critical for limiting inflammation-induced intestinal tumorigenesis. Specifically, Nod1-deficient T cells exhibit impaired IFN-γ production during dextran sulfate sodium (DSS)-induced acute inflammation in vivo, and administration of the Nod1 ligand KF1B enhances IFN-γ responses by anti-CD3-activated T cells in vitro. Absence of IFN-γ signaling results in increased inflammation-associated tumors in mice, and adoptive transfer of Nod1(-/-) or IFNγ(-/-) T cells into T cell-deficient mice results in increased tumorigenesis as compared with T cell-deficient mice that were adoptively transferred with wild-type T cells. Collectively, these results suggest a previously unappreciated role for the innate immune receptor Nod1 in suppressing colitis-associated tumorigenesis through a T cell-mediated mechanism.
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Affiliation(s)
- Yu Zhan
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Sergey S Seregin
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Jiachen Chen
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
| | - Grace Y Chen
- Division of Hematology/Oncology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109
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Sharma B, Upadhyay R, Dua B, Khan NA, Katoch VM, Bajaj B, Joshi B. Mycobacterium tuberculosis secretory proteins downregulate T cell activation by interfering with proximal and downstream T cell signalling events. BMC Immunol 2015; 16:67. [PMID: 26552486 PMCID: PMC4640201 DOI: 10.1186/s12865-015-0128-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 10/20/2015] [Indexed: 01/18/2023] Open
Abstract
Background Mycobacterium tuberculosis (M. tuberculosis) modulates host immune response, mainly T cell responses for its own survival leading to disease or latent infection. The molecules and mechanisms utilized to accomplish immune subversion by M. tuberculosis are not fully understood. Understanding the molecular mechanism of T cell response to M. tuberculosis is important for development of efficacious vaccine against TB. Methods Here, we investigated effect of M. tuberculosis antigens Ag85A and ESAT-6 on T cell signalling events in CD3/CD28 induced Peripheral blood mononuclear cells (PBMCs) of PPD+ve healthy individuals and pulmonary TB patients. We studied CD3 induced intracellular calcium mobilization in PBMCs of healthy individuals and TB patients by spectrofluorimetry, CD3 and CD28 induced activation of mitogen activated protein kinases (MAPKs) in PBMCs of healthy individuals and TB patients by western blotting and binding of transcription factors NFAT and NFκB by Electrophorectic mobility shift assay (EMSA). Results We observed CD3 triggered modulations in free intracellular calcium concentrations in PPD+ve healthy individuals and pulmonary TB patients after the treatment of M. tuberculosis antigens. As regards the downstream signalling events, phosphorylation of MAPKs, Extracellular signal-regulated kinase 1 and 2 (ERK1/2) and p38 was curtailed by M. tuberculosis antigens in TB patients whereas, in PPD+ve healthy individuals only ERK1/2 phosphorylation was inhibited. Besides, the terminal signalling events like binding of transcription factors NFAT and NFκB was also altered by M. tuberculosis antigens. Altogether, our results suggest that M. tuberculosis antigens, specifically ESAT-6, interfere with TCR/CD28-induced upstream as well as downstream signalling events which might be responsible for defective IL-2 production which further contributed in T-cell unresponsiveness, implicated in the progression of disease. Conclusion To the best of our knowledge, this is the first study to investigate effect of Ag85A and ESAT-6 on TCR- and TCR/CD28- induced upstream and downstream signalling events of T-cell activation in TB patients. This study showed the effect of secretory antigens of M. tuberculosis in the modulation of T cell signalling pathways. This inflection is accomplished by altering the proximal and distal events of signalling cascade which could be involved in T-cell dysfunctioning during the progression of the disease. Electronic supplementary material The online version of this article (doi:10.1186/s12865-015-0128-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bhawna Sharma
- Department of Immunology, National JALMA Institute for Leprosy and Other Mycobacterial Diseases (ICMR), Dr.M.Miyazaki Marg, Tajganj, Agra, 282001, India.
| | - Rajni Upadhyay
- Department of Immunology, National JALMA Institute for Leprosy and Other Mycobacterial Diseases (ICMR), Dr.M.Miyazaki Marg, Tajganj, Agra, 282001, India.
| | - Bhavyata Dua
- Department of Immunology, National JALMA Institute for Leprosy and Other Mycobacterial Diseases (ICMR), Dr.M.Miyazaki Marg, Tajganj, Agra, 282001, India.
| | - Naim Akhtar Khan
- UPRES EA 4183 Lipides & Signalisation Cellulaire, Faculté des Sciences de la vie, Université de Bourgogne, 6, Boulevard Gabriel, Dijon, 21000, France.
| | - Vishwa Mohan Katoch
- Formerly in Department of Health Research and ICMR, Ansari Nagar, New Delhi-29, India.
| | - Bharat Bajaj
- State TB Training & Demonstration Centre, S.N. Medical College Campus, Agra, 282 002, India.
| | - Beenu Joshi
- Department of Immunology, National JALMA Institute for Leprosy and Other Mycobacterial Diseases (ICMR), Dr.M.Miyazaki Marg, Tajganj, Agra, 282001, India.
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Song T, Dong C, Xiong S. Signaling lymphocyte-activation molecule SLAMF1 augments mycobacteria BCG-induced inflammatory response and facilitates bacterial clearance. Int J Med Microbiol 2015; 305:572-80. [DOI: 10.1016/j.ijmm.2015.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 07/12/2015] [Accepted: 07/28/2015] [Indexed: 11/16/2022] Open
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Cho YN, Kee SJ, Kim TJ, Jin HM, Kim MJ, Jung HJ, Park KJ, Lee SJ, Lee SS, Kwon YS, Kee HJ, Kim N, Park YW. Mucosal-associated invariant T cell deficiency in systemic lupus erythematosus. THE JOURNAL OF IMMUNOLOGY 2014; 193:3891-901. [PMID: 25225673 DOI: 10.4049/jimmunol.1302701] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Mucosal-associated invariant T (MAIT) cells contribute to protection against certain microorganism infections and play an important role in mucosal immunity. However, the role of MAIT cells remains enigmatic in autoimmune diseases. In this study, we examined the level and function of MAIT cells in patients with rheumatic diseases. MAIT cell, cytokine, and programmed death-1 (PD-1) levels were measured by flow cytometry. Circulating MAIT cell levels were significantly reduced in systemic lupus erythematosus (SLE) and rheumatoid arthritis patients. In particular, this MAIT cell deficiency was more prominent in CD8(+) and double-negative T cell subsets, and significantly correlated with disease activity, such as SLE disease activity index and 28-joint disease activity score. Interestingly, MAIT cell frequency was significantly correlated with NKT cell frequency in SLE patients. IFN-γ production in MAIT cells was impaired in SLE patients, which was due to an intrinsic defect in the Ca(2+)/calcineurin/NFAT1 signaling pathway. In SLE patients, MAIT cells were poorly activated by α-galactosylceramide-stimulated NKT cells, thereby showing the dysfunction between MAIT cells and NKT cells. Notably, an elevated expression of PD-1 in MAIT cells and NKT cells was associated with SLE. In rheumatoid arthritis patients, MAIT cell levels were significantly higher in synovial fluid than in peripheral blood. Our study primarily demonstrates that MAIT cells are numerically and functionally deficient in SLE. In addition, we report a novel finding that this MAIT cell deficiency is associated with NKT cell deficiency and elevated PD-1 expression. These abnormalities possibly contribute to dysregulated mucosal immunity in SLE.
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Affiliation(s)
- Young-Nan Cho
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Seung-Jung Kee
- Department of Laboratory Medicine, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Tae-Jong Kim
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Hye Mi Jin
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Moon-Ju Kim
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Hyun-Ju Jung
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Ki-Jeong Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Sung-Ji Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Shin-Seok Lee
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Yong-Soo Kwon
- Department of Pulmonary and Critical Care Medicine, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea
| | - Hae Jin Kee
- Heart Research Center, Chonnam National University Hospital, Gwangju 501-757, Republic of Korea; and
| | - Nacksung Kim
- Department of Pharmacology, Chonnam National University Medical School, Gwangju 501-757, Republic of Korea
| | - Yong-Wook Park
- Department of Rheumatology, Chonnam National University Medical School and Hospital, Gwangju 501-757, Republic of Korea;
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Couto D, Freitas M, Porto G, Lopez-Quintela MA, Rivas J, Freitas P, Carvalho F, Fernandes E. Polyacrylic acid-coated and non-coated iron oxide nanoparticles induce cytokine activation in human blood cells through TAK1, p38 MAPK and JNK pro-inflammatory pathways. Arch Toxicol 2014; 89:1759-69. [PMID: 25108419 DOI: 10.1007/s00204-014-1325-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 07/21/2014] [Indexed: 11/30/2022]
Abstract
Iron oxide nanoparticles (ION) can have a wide scope of applications in biomedicine, namely in magnetic resonance imaging, tissue repair, drug delivery, hyperthermia, transfection, tissue soldering, and as antimicrobial agents. The safety of these nanoparticles, however, is not completely established, namely concerning their effect on immune system and inflammatory pathways. The aim of this study was to evaluate the in vitro effect of polyacrylic acid (PAA)-coated ION and non-coated ION on the production of six cytokines [interleukin 1 beta (IL-1β), tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), interleukin 8 (IL-8), interferon gamma (IFN-γ) and interleukin 10 (IL-10)] by human peripheral blood cells, and to determine the inflammatory pathways involved in this production. The obtained results showed that PAA-coated and non-coated ION were able to induce all the tested cytokines and that activation of transforming growth factor beta (TGF-β)-activated kinase (TAK1), p38 mitogen-activated protein kinases (p38 MAPK) and c-Jun N-terminal kinases (JNK) were involved in this effect.
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Affiliation(s)
- Diana Couto
- REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Marisa Freitas
- REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal
| | - Graça Porto
- Service of Clinical Hematology, Santo António Hospital, Porto, Portugal
| | - M Arturo Lopez-Quintela
- Laboratory of Nanotechnology and Magnetism, Institute of Technological Research, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - José Rivas
- International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Paulo Freitas
- International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Félix Carvalho
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
| | - Eduarda Fernandes
- REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Porto, Portugal.
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Crawford TQ, Hecht FM, Pilcher CD, Ndhlovu LC, Barbour JD. Activation associated ERK1/2 signaling impairments in CD8+ T cells co-localize with blunted polyclonal and HIV-1 specific effector functions in early untreated HIV-1 infection. PLoS One 2013; 8:e77412. [PMID: 24143233 PMCID: PMC3797111 DOI: 10.1371/journal.pone.0077412] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Accepted: 09/03/2013] [Indexed: 01/05/2023] Open
Abstract
We recently observed that a large proportion of activated (CD38(+)HLA-DR(+)) CD8(+) T cells from recently HIV-1-infected adults are refractory to phosphorylation of ERK1/2 kinases (p-ERK1/2-refractory). Given that the ERK1/2 pathway mediates intracellular signaling critical for multiple T cell functions, including key effector functions, the loss of ERK1/2 responsiveness may have broad consequences for CD8(+) T cell function. In the current study, we hypothesized that the p-ERK1/2-refractory population, localized largely within the activated CD38(+)HLA-DR(+) CD8(+) T cell population, would display impairments in CD8(+) T cell effector functions, such as cytokine production and degranulation, compared to CD8(+) p-ERK1/2-responsive cells. We further hypothesized that the p-ERK1/2-refractory phenotype is persistent over time during untreated infection, and would correlate with poorer virologic control, in a manner independent of CD8(+) T cell activation level. We performed single-cell resolution, flow cytometric assays of phospho-kinase responses paired to intracellular cytokine staining in one assay to examine IFN-γ, perforin and CD107α responses in CD8(+) T cells by ERK1/2 signaling profile. On a per cell basis, p-ERK1/2-refractory cells, which fall predominantly within the activated CD8(+) T cell compartment, produced less IFN-γ in response to polyclonal or HIV-1 antigen-specific stimulation, and expressed lower levels of perforin and CD107α. The p-ERK1/2 refractory cell population displayed minimal overlap with the PD-1 and Tim-3 inhibitory exhaustion markers and predicted high viral load independent of activation, suggesting that ERK1/2 may be a unique marker and point of intervention for improving CD8(+) T cell function. Blunted effector functions, secondary to ERK1/2 signaling deficits concentrated within activated CD8(+) T cells, may contribute to immunodeficiency and underlie the predictive capacity of CD8(+) T cell activation on HIV-1 disease progression. (270/300).
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Affiliation(s)
- Timothy Q. Crawford
- Hawaii Center for HIV/AIDS, John A. Burns School of Medicine, Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America
| | - Fredrick M. Hecht
- HIV/AIDS Division, Department of Medicine, San Francisco General Hospital, University of California San Francisco, San Francisco, California, United States of America
| | - Christopher D. Pilcher
- HIV/AIDS Division, Department of Medicine, San Francisco General Hospital, University of California San Francisco, San Francisco, California, United States of America
| | - Lishomwa C. Ndhlovu
- Hawaii Center for HIV/AIDS, John A. Burns School of Medicine, Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America
| | - Jason D. Barbour
- Hawaii Center for HIV/AIDS, John A. Burns School of Medicine, Department of Tropical Medicine, Medical Microbiology and Pharmacology, University of Hawaii at Manoa, Honolulu, Hawaii, United States of America
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